diff --git a/iosgrep.py b/iosgrep.py
index 8360ad8..fbe2b66 100755
--- a/iosgrep.py
+++ b/iosgrep.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 import sys, os, hashlib, re
+from base64 import b64encode
 
 def Search_in_Data(keywordInData, pgname):
         print("# grep -ril -e '%s'  %s :" %(keywordInData, pgname))
@@ -14,16 +15,16 @@ def Search_in_Data(keywordInData, pgname):
         print("---use plaintext to search---\n")
         Search_in_Data(keyword[:-1], packagename)
         print("---use hex to search---\n")
-        Search_in_Data(keyword[:-1].encode("hex"), packagename)
+        Search_in_Data(keyword[:-1].encode('utf-8').hex(), packagename)
         print("---use base64 to search---\n")
-        Search_in_Data(keyword[:-1].encode("base64").replace('\n', ''), packagename)
+        Search_in_Data(b64encode(keyword[:-1].encode('utf-8')).decode('ascii'), packagename)
         print("---use md5 to search---\n")
-        Search_in_Data(hashlib.md5(keyword[:-1]).hexdigest(), packagename)
+        Search_in_Data(hashlib.md5(keyword[:-1].encode('utf-8')).hexdigest(), packagename)
         print("---use sha1 to search---\n")
-        Search_in_Data(hashlib.sha1(keyword[:-1]).hexdigest(), packagename)
+        Search_in_Data(hashlib.sha1(keyword[:-1].encode('utf-8')).hexdigest(), packagename)
         print("---use utf-8 to search---\n")
         Search_in_Data(repr(keyword[:-1]).replace("'",""), packagename)
         print("---use binary to search---\n")
         Search_in_Data((' '.join(format(ord(x), 'b')for x in keyword[:-1]).replace(' ','\s')), packagename)
         print("---use unicode to search---")
-        Search_in_Data(repr(keyword[:-1].decode("utf-8")).replace("u", "", 1).replace("'", ""), packagename)
+        Search_in_Data(repr(keyword[:-1].encode("utf-8")).replace("b", "", 1).replace("'", ""), packagename)